LONDON — The London Film Festival will close on Oct. 20 with the European preem of “Saving Mr. Banks,” the story of how “Mary Poppins” was brought to the big screen.

Pic is directed by John Lee Hancock (“The Blind Side”), and stars Emma Thompson as P.L. Travers, the author of “Mary Poppins,” and Tom Hanks as Walt Disney. The cast also includes Colin Farrell and Paul Giamatti.

Pic is produced by Alison Owen (“Elizabeth”) and co-writer Kelly Marcel (“Fifty Shades of Grey”) for Ruby Films and BBC Films.

Hancock, Thompson and Hanks are all expected to attend the Closing Night Gala.

The full fest program will be announced Sept. 4.